Sillimanite

Zircon

Sillimanite Vs Zircon

Sillimanite

Zircon

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Astrology

Origin

USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

Tanzania, Kenya, Madagascar, Cambodia, Sri Lanka, Burma, Thailand, Vietnam, Australia

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Blue, Green, Yellow, Brown, White, Colorless, Red, pink, Reddish, gray

Streak

White

For which Rashi?

Sagittarius, Virgo

Planet

Jupiter

Element of Planets

Earth, Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Apollo

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.20-3.263.93-4.73

1 7.18

👆🏻

Fracture

Splintery

Conchoidal, Uneven

Cleavage

{010} perfect

{110} and {111}

Mohs Hardness

6-7.57.5

2 10

👆🏻

Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

ZrSiO₄

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Adamantine

Pleochroism

Colourless to pale brown to yellow

Weak

Dispersion

0.020.04

0.005 1

👆🏻

Transparency

Transparent, Translucent

Transparent

Refractive Index

1.653-1.6851.810-2.024

1 3.25

👆🏻

Optic Character

Crystal System

Orthorhombic

tetragonal

Birefringence

0.020-0.0220.047-0.055

0 0.296

👆🏻

Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Clarity

Healing

Emotional healing

Physical healing

Qualities Associated

Creativity

Sillimanite Vs Zircon Fracture

Fracture is an important parameter when you compare Sillimanite and Zircon Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Zircon fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Sillimanite is Splintery. Zircon fracture is Conchoidal and Uneven.

Compare Blue Gemstones

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Sillimanite Vs Zircon Luster

A primary knowledge about Sillimanite vs Zircon luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Sillimanite exhibits Vitreous, Subadamantine and Silky luster. Zircon, on other hand, exhibits Adamantine luster.